CN114413353A - Heat pump type low-temperature regeneration rotating wheel fresh air dehumidifier system - Google Patents

Heat pump type low-temperature regeneration rotating wheel fresh air dehumidifier system Download PDF

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Publication number
CN114413353A
CN114413353A CN202111520231.1A CN202111520231A CN114413353A CN 114413353 A CN114413353 A CN 114413353A CN 202111520231 A CN202111520231 A CN 202111520231A CN 114413353 A CN114413353 A CN 114413353A
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China
Prior art keywords
evaporator
fresh air
regeneration
air duct
heat pump
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Pending
Application number
CN202111520231.1A
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Chinese (zh)
Inventor
宗天晴
傅允准
杨方
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Priority to CN202111520231.1A priority Critical patent/CN114413353A/en
Publication of CN114413353A publication Critical patent/CN114413353A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
    • F24F2003/1464—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators using rotating regenerators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Abstract

The invention relates to a heat pump type low-temperature regeneration rotary wheel fresh air dehumidifier system, which comprises a rotary wheel dehumidification unit, a heat pump unit, a fresh air duct and a regeneration air duct, wherein the fresh air duct and the regeneration air duct are separated from each other; the rotary wheel dehumidification unit comprises: a desiccant rotor (18) for heating and dehumidifying air; the dehumidifying rotating wheel (18) is inserted into the fresh air duct and the regeneration air duct at the same time; the heat pump unit comprises: a condenser (20) for heating air in the regeneration air duct; a first evaporator (16) for recovering heat in the regeneration air duct; the variable frequency compressor (1) is used for providing steam for the condenser (20); the condenser (20) and the first evaporator (16) are positioned in the regeneration air duct. Compared with the prior art, the invention has the advantages of better dehumidification capability, lower energy consumption, realization of heat transfer and the like.

Description

Heat pump type low-temperature regeneration rotating wheel fresh air dehumidifier system
Technical Field
The invention relates to the technical field of rotary dehumidification, in particular to a heat pump type low-temperature regeneration rotary fresh air dehumidifier system.
Background
The rotating wheel dehumidification belongs to an important branch in the field of air conditioners and is a typical representative of temperature rise dehumidification, the main part of the rotating wheel dehumidifier is a rotating wheel, the surface of the rotating wheel is coated with a moisture absorbent, the surface of the rotating wheel is provided with a honeycomb porous channel, moisture in wet air flowing through the rotating wheel can be absorbed by slowly rotating the rotating wheel, and the rotating wheel after moisture absorption can be dried and blown by high-temperature drying airflow to enable the moisture absorbent to be dehydrated and regenerated.
The regeneration air heater in the prior rotary dehumidifier needs to heat the air to 120-. The prior rotary dehumidifier has the defects of high regeneration energy consumption and resource waste, so that the rotary dehumidification fresh air unit is rarely applied to a civil building air conditioner fresh air system.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the heat pump type low-temperature regeneration rotary wheel fresh air dehumidifier system which has better dehumidification capacity and lower energy consumption and can realize heat transfer.
The purpose of the invention can be realized by the following technical scheme:
to the problem that prior art exists, propose the better and lower heat pump type low temperature regeneration's of dehumidification ability runner new trend dehumidification system, based on the excellent dehumidification performance of low temperature regeneration runner, utilize heat pump system to realize heat transfer, retrieve the evaporimeter heat transfer and to the condenser, release heat heating regeneration air reduces regeneration energy consumption and realizes new trend degree of depth dehumidification simultaneously, and the concrete scheme is as follows:
a heat pump type low-temperature regeneration rotary wheel fresh air dehumidifier system comprises a rotary wheel dehumidification unit, a heat pump unit, a fresh air duct and a regeneration air duct which are separated from each other;
the rotary wheel dehumidification unit comprises:
the dehumidification rotating wheel is used for heating and dehumidifying air;
the dehumidification rotating wheel is inserted into the fresh air duct and the regeneration air duct at the same time;
the heat pump unit comprises:
the condenser is used for heating the air in the regeneration air duct; although named as a condenser, the condenser actually condenses, liquefies and releases heat of the conveyed steam to heat the air; the heat pump unit is utilized to realize heat transfer, and the heat recovered by the evaporator is transferred to the condenser to be released, so that the regenerated air is heated, the regeneration energy consumption is reduced, and meanwhile, the air deep dehumidification is realized.
The first evaporator is used for recovering heat in the regeneration air channel; although named as an evaporator, the evaporator actually evaporates and absorbs heat of the transported liquid, cools the air and recovers heat; the first evaporator is used for recovering the heat of the regenerated exhaust air, and meanwhile, the influence on the surrounding environment is reduced;
the variable frequency compressor is used for providing steam for the condenser;
the condenser and the first evaporator are positioned in the regeneration air channel.
Furthermore, the rotating wheel dehumidification unit further comprises an evaporator for cooling the damp and hot air in the fresh air duct, the evaporator is located in the fresh air duct, and the evaporator is connected with the first evaporator in parallel.
Further, the evaporator comprises a second evaporator positioned on the upwind side of the dehumidification rotating wheel and/or a third evaporator positioned on the downwind side of the dehumidification rotating wheel;
the heat of the fresh air is recovered through the second evaporator, and the fresh air is cooled to ensure the optimal dehumidification performance of the dehumidification rotary wheel; the temperature rise heat of the fresh air after dehumidification by the dehumidification rotating wheel is recovered through the third evaporator, and meanwhile, the temperature adjustment of the fresh air supply is realized;
the first evaporator is positioned at the leeward side of the dehumidification rotating wheel, and the condenser is positioned at the windward side of the dehumidification rotating wheel.
Further, the first evaporator, the second evaporator and the third evaporator are connected in parallel.
Furthermore, a heat pipe heat exchanger is arranged in the regeneration air channel, and comprises an evaporation end positioned between the first evaporator and the dehumidification rotating wheel and a condensation end positioned on the windward side of the condenser.
Before the first evaporator recovers the regenerative exhaust heat, the evaporation end of the heat pipe heat exchanger recovers the regenerative exhaust heat to the condensation end for preheating the regenerative air, the exhaust heat is fully recovered, and meanwhile, the heat load of the condenser is reduced, and the stable operation of the system is ensured.
Furthermore, a main flow regulating assembly is arranged between the variable frequency compressor and the condenser and is connected with the first evaporator in parallel.
The participation degree of all evaporators can be controlled by the opening degree of the flow regulating component. The main flow regulating assembly may be a spray expansion valve and/or a spray solenoid valve.
Furthermore, a secondary flow adjusting assembly is arranged between the condenser and the first evaporator, the second evaporator or the third evaporator.
The participation degree of each evaporator can be controlled by the opening degree of the secondary flow rate adjusting assembly. The secondary flow adjustment assembly may be a refrigeration expansion valve and/or a refrigeration solenoid valve.
Furthermore, the air outlet of the fresh air duct is provided with a fresh air fan, and the air outlet of the regeneration air duct is provided with a regeneration fan.
Further, a liquid storage device and/or a filter and/or a gas separator are/is arranged between the variable frequency compressor and the condenser.
Furthermore, the system also comprises an unloading loop connected with the variable-frequency compressor in parallel, and a high-low voltage switch is arranged on the unloading loop. The unloading loop facilitates the start-up and shut-down of the inverter compressor.
Compared with the prior art, the invention has the following advantages:
(1) according to the invention, the low-temperature regeneration rotating wheel with excellent dehumidification performance is adopted, the heat transfer is realized by the heat pump unit, and the fresh air heat, the fresh air temperature rise heat after the rotating wheel dehumidification and the regeneration exhaust heat are recovered and transferred to the condenser of the heat pump unit for release, so that the regenerated air is heated, the regeneration energy consumption is reduced, and the fresh air deep dehumidification is realized;
(2) the first evaporator is used for recovering the heat of the regenerated exhaust air, and the influence on the surrounding environment is reduced; the heat of fresh air is recovered through a second evaporator, and the fresh air is cooled to ensure the optimal dehumidification performance of the low-temperature regeneration rotating wheel; the temperature rise heat of the fresh air after dehumidification of the rotating wheel is recovered through a third evaporator, and meanwhile, the temperature adjustment of the fresh air supply is realized;
(3) before the first evaporator recovers the regenerative exhaust air heat, the heat pipe heat exchanger is utilized to recover the regenerative exhaust air heat for preheating the regenerative air. The heat of airing exhaust is fully retrieved, and the heat load of the condenser of the heat pump system is reduced simultaneously, so that the stable operation of the system is ensured.
Drawings
FIG. 1 is a schematic diagram of a fresh air dehumidifier system in an embodiment;
the reference numbers in the figures indicate: the device comprises a variable frequency compressor 1, a high-low pressure switch 2, a gas separator 3, a filter 12, a liquid storage device 13, a regeneration fan 14, a second evaporator 15, a first evaporator 16, an evaporation end 17, a dehumidification rotating wheel 18, a third evaporator 19, a condenser 20, a condensation end 21 and a fresh air fan 22.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
Examples
A heat pump type low-temperature regeneration rotary wheel fresh air dehumidifier system is shown in figure 1 and comprises a rotary wheel dehumidification unit, a heat pump unit, a fresh air duct and a regeneration air duct which are separated from each other;
the rotary wheel dehumidification unit comprises: a desiccant rotor 18 for heating and dehumidifying air; the dehumidifying wheel 18 is inserted into the fresh air duct and the regeneration air duct at the same time; the rotary wheel dehumidification unit further comprises an evaporator for cooling the damp and hot air in the fresh air duct, the evaporator is located in the fresh air duct, and the evaporator is connected with the first evaporator 16 in parallel. The evaporators include a second evaporator 15 located on the windward side of desiccant rotor 18 and a third evaporator 19 located on the leeward side of desiccant rotor 18; the heat of the fresh air is recovered through the second evaporator 15, and the fresh air is cooled to ensure the optimal dehumidification performance of the dehumidification rotary wheel 18; the temperature rise heat of the fresh air after dehumidification by the dehumidification rotating wheel 18 is recovered through the third evaporator 19, and meanwhile, the temperature adjustment of the fresh air supply is realized; first evaporator 16 is positioned on a leeward side of desiccant rotor 18 and condenser 20 is positioned on an upwind side of desiccant rotor 18. The first evaporator 16, the second evaporator 15 and the third evaporator 19 are connected in parallel with each other.
Between the inverter compressor 1 and the condenser 20 is provided a main flow regulating assembly, which is connected in parallel with the first evaporator 16. The participation degree of all evaporators can be controlled by the opening degree of the flow regulating component. The main flow regulating assembly may be a liquid spray expansion valve and a liquid spray solenoid valve. A secondary flow regulating assembly is provided between the condenser 20 and the first evaporator 16, the second evaporator 15 or the third evaporator 19. The participation degree of each evaporator can be controlled by the opening degree of the secondary flow rate adjusting assembly. The secondary flow regulating assembly can be a refrigeration expansion valve and a refrigeration solenoid valve.
The heat pump unit comprises: a condenser 20 for heating air in the regeneration duct; although named as a condenser, the condenser actually condenses, liquefies and releases heat of the conveyed steam to heat the air; the heat pump unit is used for realizing heat transfer, and the heat recovered by the evaporator is transferred to the condenser 20 to be released for heating the regenerated air, so that the regeneration energy consumption is reduced, and meanwhile, the air deep dehumidification is realized. A first evaporator 16 for recovering heat in the regeneration duct; although named as an evaporator, the evaporator actually evaporates and absorbs heat of the transported liquid, cools the air and recovers heat; the heat of the regenerated exhaust air is recovered through the first evaporator 16, and meanwhile, the influence on the surrounding environment is reduced; the inverter compressor 1 is used for providing steam for the condenser 20; the condenser 20 and the first evaporator 16 are located within the regeneration duct.
A heat pipe heat exchanger is also arranged in the regeneration air duct, and comprises an evaporation end 17 positioned between the first evaporator 16 and the desiccant rotor 18, and a condensation end 21 positioned on the windward side of the condenser 20. Before the first evaporator 16 recovers the regenerative exhaust air heat, the evaporation end 17 of the heat pipe heat exchanger recovers the regenerative exhaust air heat to the condensation end 21 for preheating the regenerative air, so that the exhaust air heat is fully recovered, and meanwhile, the heat load of the condenser 20 is reduced, and the stable operation of the system is ensured.
The air outlet in new wind channel is equipped with new trend fan 22, the air outlet in regeneration wind channel is equipped with regeneration fan 14. An accumulator 13, a filter 12 and a gas separator 3 are also arranged between the inverter compressor 1 and the condenser 20. The system also comprises an unloading loop connected with the inverter compressor 1 in parallel, and a high-low voltage switch 2 is arranged on the unloading loop. The unloading circuit facilitates the start-up and shut-down of the inverter compressor 1.
In summary, the invention adopts the low-temperature regeneration rotating wheel with excellent dehumidification performance, simultaneously utilizes the heat pump unit to realize heat transfer, recovers and transfers fresh air heat, fresh air temperature rise heat after the rotating wheel is dehumidified and regenerated exhaust air heat to the condenser of the heat pump unit to release, and is used for heating regenerated air, reducing regeneration energy consumption and realizing air deep dehumidification. In addition, the heat pipe heat exchanger is used for recovering the heat of the regenerated exhaust air for preheating the regenerated air. The heat of airing exhaust is fully recovered, and the heat load of the condenser of the heat pump system is reduced, so that the system can stably run.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims (10)

1. A heat pump type low-temperature regeneration rotary wheel fresh air dehumidifier system is characterized by comprising a rotary wheel dehumidification unit, a heat pump unit, a fresh air duct and a regeneration air duct which are separated from each other;
the rotary wheel dehumidification unit comprises:
a desiccant rotor (18) for heating and dehumidifying air;
the dehumidifying rotating wheel (18) is inserted into the fresh air duct and the regeneration air duct at the same time;
the heat pump unit comprises:
a condenser (20) for heating air in the regeneration air duct;
a first evaporator (16) for recovering heat in the regeneration air duct;
the variable frequency compressor (1) is used for providing steam for the condenser (20);
the condenser (20) and the first evaporator (16) are positioned in the regeneration air duct.
2. A heat pump type low temperature regenerative rotary wheel fresh air dehumidifier system according to claim 1, wherein said rotary wheel dehumidification unit further comprises an evaporator for cooling the hot and humid air in the fresh air duct, said evaporator being located in the fresh air duct, said evaporator being connected in parallel to the first evaporator (16).
3. A heat pump type low temperature regeneration rotary wheel fresh air dehumidifier system according to claim 2, wherein said evaporators include a second evaporator (15) located at upwind side of the desiccant rotary wheel (18) and/or a third evaporator (19) located at downwind side of the desiccant rotary wheel (18);
the first evaporator (16) is positioned at the leeward side of the dehumidifying rotating wheel (18), and the condenser (20) is positioned at the windward side of the dehumidifying rotating wheel (18).
4. A heat pump type low temperature regeneration rotary wheel fresh air dehumidifier system according to claim 3, wherein said first evaporator (16), said second evaporator (15) and said third evaporator (19) are connected in parallel.
5. A heat pump type low temperature regeneration rotary wheel fresh air dehumidifier system according to claim 1, wherein a heat pipe heat exchanger is further provided in the regeneration air duct, and the heat pipe heat exchanger comprises an evaporation end (17) located between the first evaporator (16) and the dehumidification rotary wheel (18), and a condensation end (21) located at the upstream side of the condenser (20).
6. A heat pump type low temperature regeneration rotary wheel fresh air dehumidifier system according to any one of claims 1 to 5, characterized in that a main flow regulation assembly is arranged between the inverter compressor (1) and the condenser (20), and the main flow regulation assembly is connected with the first evaporator (16) in parallel.
7. A heat pump type low temperature regeneration rotary wheel fresh air dehumidifier system according to claim 3, wherein a secondary flow adjusting assembly is arranged between said condenser (20) and said first evaporator (16), said second evaporator (15) or said third evaporator (19).
8. A heat pump type low temperature regeneration rotary wheel fresh air dehumidifier system according to any one of claims 1 to 5, wherein an air outlet of said fresh air duct is provided with a fresh air fan (22), and an air outlet of said regeneration air duct is provided with a regeneration fan (14).
9. A heat pump type low temperature regeneration rotary wheel fresh air dehumidifier system according to any one of claims 1 to 5, characterized in that a liquid storage device (13) and/or a filter (12) and/or a gas separator (3) is/are further provided between said variable frequency compressor (1) and said condenser (20).
10. A heat pump type low temperature regeneration rotary wheel fresh air dehumidifier system according to any of claims 1 to 5, characterized in that, said system further comprises an unloading loop connected in parallel with the inverter compressor (1), said unloading loop is provided with a high and low voltage switch (2).
CN202111520231.1A 2021-12-13 2021-12-13 Heat pump type low-temperature regeneration rotating wheel fresh air dehumidifier system Pending CN114413353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111520231.1A CN114413353A (en) 2021-12-13 2021-12-13 Heat pump type low-temperature regeneration rotating wheel fresh air dehumidifier system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111520231.1A CN114413353A (en) 2021-12-13 2021-12-13 Heat pump type low-temperature regeneration rotating wheel fresh air dehumidifier system

Publications (1)

Publication Number Publication Date
CN114413353A true CN114413353A (en) 2022-04-29

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ID=81264690

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111520231.1A Pending CN114413353A (en) 2021-12-13 2021-12-13 Heat pump type low-temperature regeneration rotating wheel fresh air dehumidifier system

Country Status (1)

Country Link
CN (1) CN114413353A (en)

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